Find the missing digits.
- Y
- Z
Y639 - 59Z8 = 2661(a)
In the hundreds place, 6 is less than 9.
So, there is regrouping in the thousands place.
Y - 1 - 5 = 2
Y = 2 + 5 + 1
Y = 8
(b)
In the ones place, 9 is more than 8.
So, there is no regrouping in the tens place.
3 - Z = 6
In the tens place, 6 is more than 3.
This means that there is a regrouping done in the hundreds place so that 13 can substract a certain number to get 6.
Z = 13 - 6
Z = 7
Answer(s): (a) 8; (b) 7
